Does 97 octane make a difference?
Using fuel of a higher octane than your engine needs or can benefit from won’t hurt it, only your wallet. The difference between premium and super unleaded at the UK forecourt these days is a maximum of two points (97 octane versus 99) and the chance of a modern engine being damaged by the lower of the two is nil.
Is 93 or 95 petrol cheaper?
While the price of 95 Unleaded is set to increase by 18 cents a litre, 93 Unleaded will in fact become 4 cents cheaper. Whereas 93 ULP currently costs 20 cents less than 95 ULP, from October 2 the lower octane fuel will save you 42 cents a litre at the pumps (at R15. 79 a liter versus R16.
What is the difference between 95 and 97 petrol?
Petrol. OK, we’re about to get technical; ’95/97/98 RON’ refers to the octane rating. This is a measure of how easily the fuel will ignite within the engine of a car. The higher the octane rating is, the harder it is for the fuel to ignite because the fuel requires greater compression in order to do so.
What’s the difference between 95 and 98 octane petrol?
If 95 octane petrol is used, those costs rise to around $2,330 per year while using 98 octane fuel would see costs increase again to around $2,410 per year. That’s a difference of between $80 and $160 per year for no real gain in performance or fuel economy.
How much does it cost to use 91 octane petrol?
If, as specified, that car uses 91 octane petrol, the yearly petrol costs will be around $2,250. If 95 octane petrol is used, those costs rise to around $2,330 per year while using 98 octane fuel would see costs increase again to around $2,410 per year.
Why does premium petrol have a higher octane rating?
Premium petrol usually has a higher octane rating than regular petrol. Octane is a chemical component of petrol, and the amount of octane contained within the fuel determines how well it will work in higher compression engines – high octane fuel works more effectively than lower rated fuels.
Why was the sale of 85 octane fuel allowed?
The sale of 85 octane fuel was originally allowed in high-elevation regions—where the barometric pressure is lower—because it was cheaper and because most carbureted engines tolerated it fairly well.